chatgpt-on-wechat/skills/openai-image-vision/SKILL.md

name, description, homepage, metadata

name	description	homepage	metadata
openai-image-vision	Analyze images using OpenAI's Vision API. Use bash command to execute the vision script like 'bash <base_dir>/scripts/vision.sh <image> <question>'. Can understand image content, objects, text, colors, and answer questions about images.	https://platform.openai.com/docs/guides/vision	emoji requires primaryEnv 👁️ bins env curl base64 OPENAI_API_KEY OPENAI_API_KEY

OpenAI Image Vision

Analyze images using OpenAI's GPT-4 Vision API. The model can understand visual elements including objects, shapes, colors, textures, and text within images.

Setup

This skill requires an OpenAI API key. If not configured:

1. Get your API key from https://platform.openai.com/api-keys
2. Set the key using: env_config(action="set", key="OPENAI_API_KEY", value="your-key")

Optional: Set custom API base URL (default: https://api.openai.com/v1):

env_config(action="set", key="OPENAI_API_BASE", value="your-base-url")

Usage

Important: Scripts are located relative to this skill's base directory.

When you see this skill in <available_skills>, note the <base_dir> path.

CRITICAL: Always use bash command to execute the script:

# General pattern (MUST start with bash):
bash "<base_dir>/scripts/vision.sh" "<image_path_or_url>" "<question>" [model]

# DO NOT execute the script directly like this (WRONG):
# "<base_dir>/scripts/vision.sh" ...

# Parameters:
# - image_path_or_url: Local image file path or HTTP(S) URL (required)
# - question: Question to ask about the image (required)
# - model: OpenAI model to use (default: gpt-4.1-mini)
#   Options: gpt-4.1-mini, gpt-4.1, gpt-4o-mini, gpt-4-turbo

Examples

Analyze a local image

bash "<base_dir>/scripts/vision.sh" "/path/to/image.jpg" "What's in this image?"

Analyze an image from URL

bash "<base_dir>/scripts/vision.sh" "https://example.com/image.jpg" "Describe this image in detail"

Use specific model

bash "<base_dir>/scripts/vision.sh" "/path/to/photo.png" "What colors are prominent?" "gpt-4o-mini"

Extract text from image

bash "<base_dir>/scripts/vision.sh" "/path/to/document.jpg" "Extract all text from this image"

Analyze multiple aspects

bash "<base_dir>/scripts/vision.sh" "image.jpg" "List all objects you can see and describe the overall scene"

Supported Image Formats

• JPEG (.jpg, .jpeg)
• PNG (.png)
• GIF (.gif)
• WebP (.webp)

Performance Optimization: Files larger than 1MB are automatically compressed to 800px (longest side) to avoid command-line parameter limits. This happens transparently without affecting analysis quality.

Response Format

The script returns a JSON response:

{
  "model": "gpt-4.1-mini",
  "content": "The image shows...",
  "usage": {
    "prompt_tokens": 1234,
    "completion_tokens": 567,
    "total_tokens": 1801
  }
}

Or in case of error:

{
  "error": "Error description",
  "details": "Additional error information"
}

Notes

• Image size: Images are automatically resized if too large
• Timeout: 60 seconds for API calls
• Rate limits: Subject to your OpenAI API plan limits
• Privacy: Images are sent to OpenAI's servers for processing
• Local files: Automatically converted to base64 for API submission
• URLs: Can be passed directly to the API without downloading